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Individual Calculations April 2020 |
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| Potgieter, Edward Total change: 14.00 | |   |
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| 2020 Waterkloof Open Chess Tournament (Section A) | Pretoria | RSA | 2020-02-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1400 | 1215 | 1.50 | 4 | 0.35 | 40 | 14.00 | |
|  Lesuthu, Kali M. | | | 1553 | RSA | 0.50 | 1 | 0.38 | 40 | 15.20 | |  Govender, Shevern | | | 1561 | RSA | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Van Jaarsveld, Anje | | | 1255 | RSA | 0.00 | 1 | -0.44 | 40 | -17.60 | | | Greyling, Hendrik | | | 1232 | RSA | 1.00 | 1 | 0.52 | 40 | 20.80 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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